The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 25, 2014
Filed:
May. 12, 2010
Atsushi Ogawa, Columbus, OH (US);
Atsushi Ogawa, Columbus, OH (US);
Nifco Inc., Yokohama-Shi, JP;
Abstract
An air damper capable of stabilizing a damping force of the air damper is obtained. When a rod member () is pulled out of a cylinder member (), a suction member () hits against the other side surface () of a piston member () so as to close an air passage (), and an airflow path communicating between an air chamber () and an outside is only orifice portions (). On the other hand, when the rod member () is pushed into the cylinder member (), the suction member () moves away from the other side surface () of the piston member () so as to open the air passage (). Consequently, compared to a conventional structure in which an O-ring rolls by a friction force with an inner peripheral surface of a cylinder so as to open or close the air passage, the air passage () can be opened and closed as intended so as to be capable of stabilizing the damping force.